fermentation foam

[Jesus Verastegui]

recently i made a 11 litters batch pale ale, 14 days of fermentation and 2 days of cold, but yesterday when i decided to bottle i see a kind of foam on top, i don't know what it is, i decided to try the beer and it was perfect, good flavour, and today seein the bottles, there are many with foam on top, is this bad or can i expect some bad in future?

beer on fermentator

beer on bottle

 

[DuncB]

That's just a bit of yeast residue, normally you can suck the beer from underneath this when you bottle.
The yeast on the top in the bottle should go if you invert the bottle a couple of times, or invert before cooling after conditioning. It should be okay.

 

[DBhomebrew]

How did you confirm fermentation was complete?

 

[Jesus Verastegui]

That's just a bit of yeast residue, normally you can suck the beer from underneath this when you bottle.
The yeast on the top in the bottle should go if you invert the bottle a couple of times, or invert before cooling after conditioning. It should be okay.

thaks for your anwser i will try you comment in other batch, now the beer was bottle

How did you confirm fermentation was complete?

i did not, i have no tools to check, i am going to buy a refractometer so that from now on I can measure the density

 

[DuncB]

thaks for your anwser i will try you comment in other batch, now the beer was bottle



i did not, i have no tools to check, i am going to buy a refractometer so that from now on I can measure the density

You will need a hydrometer at least to calculate the correction factor for your refractometer.

 

[day_trippr]

There be "bugs" in that first picture...

 

[DBhomebrew]

You will need a hydrometer at least to calculate the correction factor for your refractometer.

Wort correction factors are wort specific, not refractometer specific. 1.04 is a very usable default for most beer worts. In this case, an uncalibrated refractometer with no WCF would be sufficient to be sure OP doesn't bottle an active fermentation.

 

[DBhomebrew]

beer on bottle

View attachment 822891

This looks very active. I would be concerned with possible bottle bombs.

 

[DuncB]

Wort correction factors are wort specific, not refractometer specific. 1.04 is a very usable default for most beer worts. In this case, an uncalibrated refractometer with no WCF would be sufficient to be sure OP doesn't bottle an active fermentation.

So when I did the calibration refractometer using the brewfather brix to gravity tool calibration option the number generated as a correction factor only applied to that wort?
The answers it has given me do correlate extremely consistently with the hydrometer reading I am taking across a wide range of different worts.

 

[Hoochin'Fool]

There be "bugs" in that first picture...

That's what I was thinking...

 

[DBhomebrew]

So when I did the calibration refractometer using the brewfather brix to gravity tool calibration option the number generated as a correction factor only applied to that wort?
The answers it has given me do correlate extremely consistently with the hydrometer reading I am taking across a wide range of different worts.

https://www.homebrewtalk.com/threads/refractometer-wort-correction-factor.703591/

 

[DuncB]

Thank you @DBhomebrew